Check parity of a 16-bit received word. Argument is the 18-bit word read from IO pins, inverted Returns true if parity is valid.

Generate parity for bytes. This is only used for slow control & command transfers. Returns the GPIO value without SCSI_IO_SHIFT.

* Sets up playback via side effect for last_track_reached, within_gap, fpos and fleft, gap_read * \param start - start of playback in lba * \param l

Standard mapping according to ECMA-107 and ISO/IEC 9293:1994 Sector always starts at 1. There is no 0 sector.

Place all the setup code that requires the SD card to be initialized here Which is pretty much everything after platform_init and and platform_late_in

Check if a CUE FILE reference matches a BIN filename. Strips extensions and compares stems case-insensitively. Allows BlueSCSI prefix pattern: e.g., "

Eject CDROM tray if closed, close if open Switch image on ejection.

One-line-per-target region summary.

Load the SCSI parity state machine with the address of the parity lookup table. Also sets up DMA channels B and C

Callback once all data has been read in the data out phase.

Eject and switch image This is really press eject button for close and open.

Extract canonical target name from an ELF filename.

Convert data bytes to GPIO words ready for DMA

Return (flash_to_ram, ram_to_flash) lists of (name, size) tuples.

Return dict of symbol_name -> region for all symbols in an ELF.

Go back to previously saved position

Map a SCSI peripheral device type to a human-readable name. Returns nullptr for unsupported (non-block) types — the initiator skips those rather than

Compare device settings and log fields that differ from defaults. If scsiId >= 0, prints a [SCSIn] header before the first diff.

core method for logging a data buffer into a hex string

core method for variadic printf like logging

perform MSC class preinit tasks */

Act as SCSI initiator

perform periodic tasks, return true if we should remain in card reader mode */

Checks if SD card is still present

Read device settings

Read the config file into RAM

Check if transmission is complete

Start transferring data from memory to SD card

Load values for target image configuration from given section if they exist. Otherwise keep current settings.

Read one byte from SCSI target using the handshake mechanism.